. ♪♪ ♪ ♪ geico motorcycle. see how much you could save. >>> welcome back everyone. in china the air pollution is often bad, but this winter it's been so bad it's sparking public protest. >> interesting. the smog can even be seen from space. check out this time lapse photography showing beijing on a clear day and then beijing on a very bad smog day. >> you can't see it. >> amazing stuff. >> health officials in china say more than 8,000 people died from being exposed to this stuff last year. and that's before the recent so-called airpocalypse even hit. >> many people wear face masks to protect themselves, but a regular mask simply these days isn't good enough. >> you need one of these. it's a very thick mask. you have to pinch your nose like this. and then wander around. but i have to be quite honest, it's kind of weird doing that out on the streets. you feel a little bit bad also because ordinary people, chinese and expats aren't wearing these. >> wow. phillippe joining us now. they have problems particularly in beijing because of all the vehicles and other things, b